Working out legs is important to reach any fitness goal and it enhances daily life by promoting balance in the body. For those who want to lose weight, working out legs burns the most calories, especially when done in a circuit (back to back exercises with no rest in between). Hitting legs is also critical for someone wanting to gain mass. Going intense and heavy on leg day increases secretion of hormones like testosterone and growth hormone throughout the body, allowing one to gain more muscle mass in the upper body as well as the lower.
